var myChartl3_1 = echarts.init(document.getElementById('fb1'));
optionl3_1 = {

    title: [{
        text: '年龄分布',
        left: 'center',
        textStyle: {
            color: '#fff',
            fontSize: '16'
        }

    }],
    tooltip: {
        trigger: 'item',
        formatter: "{a} <br/>{b}: {c} ({d}%)",
        position: function(p) { //其中p为当前鼠标的位置
            return [p[0] + 10, p[1] - 10];
        }
    },
    legend: {

        top: '70%',
        itemWidth: 10,
        itemHeight: 10,
        data: ['0岁以下', '20-29岁', '30-39岁', '40-49岁', '50岁以上'],
        textStyle: {
            color: 'rgba(255,255,255,.5)',
            fontSize: '12',
        }
    },
    series: [{
        name: '年龄分布',
        type: 'pie',
        center: ['50%', '42%'],
        radius: ['40%', '60%'],
        color: ['#065aab', '#066eab', '#0682ab', '#0696ab', '#06a0ab', '#06b4ab', '#06c8ab', '#06dcab', '#06f0ab'],
        label: { show: false },
        labelLine: { show: false },
        data: [
            { value: 1, name: '0岁以下' },
            { value: 4, name: '20-29岁' },
            { value: 2, name: '30-39岁' },
            { value: 2, name: '40-49岁' },
            { value: 1, name: '50岁以上' },
        ]
    }]
};

// 使用刚指定的配置项和数据显示图表。
myChartl3_1.setOption(optionl3_1);
window.addEventListener("resize", function() {
    myChartl3_1.resize();
});